This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | -1 |
| 3 | 24 |
| 4 | -10 |
| 5 | 1 |
| 6 | 115 |
| 7 | -73 |
| 8 | 15 |
| 9 | -1 |
| 10 | 551 |
| 11 | -470 |
| 12 | 147 |
| 13 | -20 |
| 14 | 1 |
| 15 | 2640 |
| 16 | -2828 |
| 17 | 1190 |
| 18 | -246 |
| 19 | 25 |
| 20 | -1 |
| 21 | 12649 |
| 22 | -16310 |
| 23 | 8631 |
| 24 | -2400 |
| 25 | 370 |
| 26 | -30 |
| 27 | 1 |
| 28 | 60605 |
| 29 | -91371 |
| 30 | 58275 |
| 31 | -20385 |
| 32 | 4225 |
| 33 | -519 |
| 34 | 35 |
| 35 | -1 |
| 36 | 290376 |
| 37 | -501150 |
| 38 | 374115 |
| 39 | -157800 |
| 40 | 41140 |
| 41 | -6790 |
| 42 | 693 |
| 43 | -40 |
| 44 | 1 |
| 45 | 1391275 |